General Description：

The MAX40200 is an ideal diode current-switch that dropsso little voltage that it approaches an order of magnitudebetter than Schottky diodes.When forward-biased and enabled, the MAX40200conducts with as little as 85mV of voltage drop while carryingcurrents as high as 1A. Typical voltage drop is 43mV at500mA, with the voltage drop increasing linearly at highercurrents. The MAX40200 thermally protects itself, and anydownstream circuitry, from overtemperature conditions.When disabled (EN = low) the MAX40200 blocks voltagesup to 6V in either direction, making it suitable for mostlow-voltage, portable electronic devices. The MAX40200operates from a supply voltage of 1.5V to 5.5V.The MAX40200 is available in a tiny, 0.73mm X 0.73mm,4-bump wafer-level package (WLP), with a 0.35mm bumppitch and only 0.5mm high and 5-pin SOT-23 package.The MAX40200 operates over the extended -40°C to+125°C temperature range.

Benefits and Features：

● Save Critical Voltage Drop in Portable Application

• Drops Less Than 43mV at 500mA; 85mV at 1A

● Longer Battery Life

• Low Leakage When Reverse-Biased : 70nA (Typ),1.5µA (Max)

• Low Supply Quiescent Current: 7µA (Typ), 18µA (Max)

● Saves Space Over Larger Schottky Diodes

• Tiny 0.73mm x 0.73mm 4-bump WLP

• SOT23-5 Package

● Supply Voltage Range 1.5V to 5.5V

● Thermally Self-Protecting

● -40°C to +125°C Temperature Range

Applications：

● Notebook and Tablet Computers

● Portable Media Players

● Cellular Phones

● Portable/Wearable Medical Devices

● Electronic Toys

● USB-Powered Peripherals